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Wires, cables, wifi

Internet etc

QuestionAnswer
1. What is the Internet? A physical system that was made to move information.
2. What kind of information/data does the internet send? Binary information is sent over the internet.
3. Define the term BITS? The smallest piece of information sent through the internet. It is made up of binary code, which is 1’s and 0’s.
4. Give one example of a BIT. An example of a BIT is 1.
5. What is 8bits strung together called? 8 bits strung together is a byte.
6. How many megabytes is a typical MP3 file? A typical MP3 file is 3-4 megabytes.
What are the three physical media used to send bits across the internet? Electricity (copper cables), light (fiber optic cables) and radio waves (wireless) are all types of physical media.
8. What is Bandwidth? Bandwidth is the maximum transmission capacity of a device.
9. What is Bitrate? Bit rate is the number of bits that we can send over a given period of time.
10. What is ethernet? Ethernet cables are made up of wires, which are made up of copper.
11. What is a faster physical medium than copper wire? Explain why Fiber optic cables can be a faster physical medium that copper wire since it uses light to send this information. This is because it is faster and has less signal loss.
12. How is information sent wirelessly? Wireless information can be made through radio waves, another type of physical media. Radio waves can travel without a wire so therefore wireless.
Created by: s108130
 

 



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